Stave-jointing machine.



E. F. BEUGLER.

STAVB JOINTING MACHINE.

APPLICATION FILED MAR. 1a, 1913.

1,105,609. Patented Aug. 4, 1914L 9 SHEBTSSHBBT 1.

THE NORRIS PETERS Ct). ."HUTO-LITH() WASHINGTON D E. F. BEU'GLER.

STAVE JOINTING MACHINE.

APPLICATION FILED MAB.13.1913.

1,105,609. Patented Aug. 4, 1914.

9 SHEETS-BHBBT 2.

E. F. BEUGLER.

STAVE JOINTING MACHINE.

APPLIOATION HLBD MAR. 13, 1913.

1 1 05,609. Patented Aug. 4, 1914.

9 SHEETS-SHEET 3.

THE NORRIS PETERS CO, PHOTO-LITNO. WASHINGTON, D. C.

E. E'. BEUGLER.

STAVB JOINTING MACHINE. APPLIOATION FILED MAR.1a,`191s.

1 ,105,609, Patented Aug. 4, 1914.

'lHhl NORNIS PETERS (YL HOTO-LITHlL WASHINGTON4 D. C.

E. F. BEUGLER.

STAVE JOINTING MACHINE.

APPLICATION FILED 1II.IR.13,1913y 1,105,609. Patented Aug. 4, 1914.

9SHEETS-SHEET 5.

Patented Aug. 4, 1914.

9 SHEETS-"SHEET 6.

ou 's E. P. BEUGLER.

STAVB JOINTING MACHINE.

APPLIUATION FILED nimma, 1913.

1,105,609. Patented Aug. 4, 1914.

9 SHEETS-SHEET 7.

'H5 NORRIS PETERS LTL PIIO'VOJJIHO. WASHINGTON D t E. F. BBUGLER.

STAVB JOINTING MACHINE.

AYPLIoATIoN FILED Mums. 1013.

1 1 05,609. Patented Aug'. 4, 1914.

9 SHEETS-BHBET 8.

THE NORRS PETERS CO, PHOTO-LI'IHO. WASHINGTON. D l

E. P. BEUGLER.

STAVB JOINTING MACHINE,

APPLIUATION FILED 111111.13, 1913.

Patented Aug. 4, 1914.

r y W Z lw/ ,W ha

1% MM. m www m H l UNTTEI) 1 STATES PATENT OFFICE.

EDWIN F. BEUGLEB., OF BUFFALO, NEW YORK, ASSIGNOR TO E. & B. HOLMES MACHINERY CO., OF BUFFALO, NEW YORK, A CORPORATION 0F NEW YORK.

STAVE-JOINTING- MACHINE.

Specification of Letters Patent.

Patented Aug. 4, 1914.

Application filed March 13, 1913. Serial No. 753,987.

To all whom it may concern Be it known that I, EDWIN F. BEUGLER, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Stave-Jointing Machines, of which the following is a specilication.

My invention relates to stave j ointing machines.

The object of my invention is to provide a machine for jointing barrel staves possessing the improvements and advantages which will be evident from the following specification and the novel features particularly specified in the claims.

It will be understood by those familiar with the art that barrel staves are formed from blanks or slats of wood, cut to the proper length and of varying widths. These blanks must be beveled on their edges to an angle approximately conformable to the barrel radius, and must also be so beveled on curved lines conformable to the desired bilge of the barrel; and, as will here after more fully appear, this curvature must be greater or less with reference to a given stave according to its width. By means of my improvements I am able to perform these several functions with speed and accuracy by using a circular saw and the several mechanisms and combinations which I will now describe by reference to the annexed drawings forming a part of this specification, and in which like characters of reference indicate corresponding parts.

Figure l is a side elevation, showing the front side of the machine. Fig. 2 is a hack" side elevation. Fig. 3 is a left-hand end ele vation. Fig. 4 is a right-hand end elevation. Fig. 5 is a plan view. Fig. G is a detail section on the line (3*6 of Fig. 8. Fig. 7 is a plan view of the frame on which the saw carriage is slidable showing the guides which direct the curved path of the saw and the mechanism for varying the degree of curvature. Fig. 8 is a detail section on the line 8--8 of Fig. l showing the clamping mechanism for holding a stave blank. Fig. 9 is a detail section on the line 9-9 of Fig. 2, showing the construction of the saw carriage and the ways upon which it travels. Fig. 10 is a detail on the line 10-10 of Fig. l, which shows the friction device hereafter described. Fig. ll is a sectional view through the power transmitting mechanism including the clutch, the frame and clutch operating mechanism being shown in elevation. Fig. l2 is a perspective view of the mechanism which actuates the clamps which hold the stave blank. Fig. 13 is a perspective of the double pivot yoke connecting the saw carriage with the reciprocating bar. Fig. 14 is a detail perspective of the foot lever mechanism. Fig. 15 is a detail perspective of the stave support which travels with the saw carriage and which fits close to the back of the saw. Fig. 16 is a perspective of a stave jointed by my machine. Fig. 17 is a detail in perspective of the means for regulating the degree of curvature of travel of the saw and of the clamping mechanism for holding the same during movement of the saw.

The mechanism is mounted upon a main frame of any desired form of construction, as the rectangular front casting l, the rectangular back casting 2 and the connecting cross-pieces 3 and 1.

I will first describe the several mechanisms, and then describe their joint or successive operations.

Application of wwwa-Power is ap lied to ordinary belt-shift pulleys 8 an( 8 through a belt connecting with any proper source of power. These pulleys 8 and 8 are mounted upon the shaft 7, one loose and the l'other keyed in the usual manner. The shaft 7 rotates in bearings 6 upon thcupwardly extending arms 5, which are secured to or integral with the frame of the machine.

Smc v-ozfalz'0n.-Thc saw 38 is constantly driven in rotation inthe following manner: A belt 35 passes over a pulley 39 on the saw arbor 40, which rotates in bearings 4-1; thence over a pulley 42 on the shaft 7; thence over a pulley LI3 mounted on a shaft 414 carried on a pivoted arm Ll5; and' thence over a pulley 46 which travels with the saw carriage. The pulley 43 tightens the belt ment to the shaft 2O through a pinion 82 and a spur-gear 81.

` Stzw@ blank rest-Secured to the main frame is a hollow secondary frame 52. To

this secondary frame 52 are adjustably se-l 'cured arms or rests 58, upon .vhicli the stave blank rests. By adjustment of these arms or rests the desired joint angle for a barrel of any desired radius may be attained. In Fig. 8 this construction is shown with a stave blank in place, the bevel being shown at 58a. 1n order that the operator may place the stave blank in the proper position longitudinally, a stop or rest 54 is provided (see Fig. 6) which maybe adjusted to any desired stave length. Mounted upon and traveling with the saw carriage isa rest or support 61 (Figs. 8 and 15) which comes up close to the back side of the saw and serves to steady the waste piece or strip of the blank which is being severed by the saw- The ends of this lrest are bent downwardly so as not to strike the ends of the stave as the carriage moves. This attachment is of large importance, since without it there is danger, especially with brash or shaky or gummy wood, of the saw macerating the edge of the stave or of the waste piece clogging the saw. y

Glam/ping me0tcmsm.-Secured to the front portion of the frame 1 are two upright standards 18 and 14. These standards carry two reciprocating rods 15 and 16 which are secured to and guide a longitudinal bar 17. This bar 17 carries the clamping lingers 18, which come down upon the stave blank over the rests 58 and clamp and hold the blank during the jointing operation. rFhe bar 17 is reciprocated to clamp and release a stave blank in the following manner: Springs 56, through the rods 15 and 16` and the bar 17, normally hold the lingers 18 in clamping position. The mechanism for releasing the saine is best shown in Fig. 12. A cam 19 on the shaft 20 actuates a lever 22, medially pivoted to a fixed part of the machine.-

This lever 22 is pivoted to a connecting rod 28, which, in turn, is pivoted to the long longitudinal rod 24. Pivoted to the rod 24 are bellcrank levers 26, medially pivoted to a fi-X'ed part of the machine, and the free ends 27 and 28 bear lagainst the under sides of lugs 29 and V8,0 which are adjustably secured to the rods 15 and 16, respectively.

lt will beevident that when a highpoint of the cam 19 acts on the lever 22, the rods 15 and 16 will be raised against the springs 56, and the clamping fingers 18 will be released. p Placement 0 f stave Mana-For the lateral adjustment orplacement ofthe stave blank, two arms 55 land 56 are provided which serve to shove the blank evenly rearwardly upon the rests 58, and an. eye-guide, 57, that is to say, a guide to the eye of the operator is mounted vertically and slidably on the back side of the bar 17 and depends over, but clear of, the space for the stave blank. i4 set-screw or other limiting means prevents this guide 57 from depending in the way of the blank. As this guide descends when the operator releases the fingers 55 and 56, the lower motion is limited by a set-screw 58 fastened to a longitudinal bar 59.

Reciprocating moeizame/at 0 f saw carriager.the reciprocating movement of the saw carriage is obtained by means of a connecting rod 48 pivoted to a lever 49, said lever 49 being pivoted at its other end to the frame of the machine, a rod 50 pivoted to said lever 49 and to a crank 51 on the shaft 20. Since the rod 48 has movement pivotally in a vertical plane and as the saw carriage has lateral movement in a horizontal plane, as hereafter described, said rod 48 is con nected to the saw carriage by the double pivot plate 48a, shown in Fig. 18, the rod 48 being pivoted thereto by a vertical pivot to permit such lateral movement and said plate 48a being pivoted to said carriage by two horizontal pivots which permit of the up-and-down movement of said rod 48.` rlhe pulleys over which the belt 85 which rotates the saw passes are of sufficient width of face to permit the small lateral movement in travel of the saw carriage without ldisplacement of thebelt.

Saw carriage c0nstra0tz'0n.--Tliis Ais best shown in Fig. 9. The carriage slides on two flat ways 87 mounted on the frame of the machine; and upon the under side of the carriage l provide four antifriction plates 87 a which carry the carriage upon said ways 87. Secured to the under side of the carriage also are four antifriction blocks 86 which bear against the opposite sides of the carriage bilge guide 84, which is adjustably secured vto the bed of the machine. 1t is evident, therefore, that the saw carriage will travel in a horizontal plane, but will be compelled to follow a curve upon that plane conformable to the curvature of the carriage bilge guide 84.

Clutch vand brake mechanisms-This is clearly shown in Fig. 11'. The pulley 11 is mounted revolubly on shaft 12 `and constitutes one mem-ber of a friction clutch'. rfhe other member 62 of the clutch-is splined slidably on the shaft 12 and has a plurality of clutch blocks 68, conformable to frictional engagement with the inner beveled face 64; of the pulley 11. The outer face 64 of the. member 62 is beveled to contact, in the out or disengaged position, with a plurality of brake blocks 65 secured to a fixed portion of the machine. A spring 12 tends to hold the two members 11 and 62 in frictional contact. The pulley 11 being in constant rotation, when thetwo clutch members are brought into action, the shaft 12 will be rotated; and when the clutch member 62 is thrown into contact with the brake blocks 65, the shaft 12 will be stopped and held against rotation; and, moreover, the contacting faces of the mem-ber 62 and the brake blocks 65 are on so slight an angle that, when thrown into the brake position, the force of the spring 12 is not sufficient to disengage them, and the member 62 will remain in the brake position until released as hereafter described.

(ll/mich. and brd-7u@ operating means-Since it is necessary to stop the rotation of the shaft 12 and the action of the several parts driven by it at the end of each movement of the saw in jointing astave, I provide a yoke lever 66 which is collared to the hub of the clutch and brake member 62. This lever 66 is fulcrumed at its lower end to a fixed part ofthe machine. A toggle 65a pivoted to a bar 66, pivoted to a bar 66b which is slot-pivotedto the lever 66 at 66, serves to control the lever 66. A. cam roller 69 is rigidly mounted upon the bar 66, to which the toggle 65u is pivoted, and contacts with the high points on a cam 68 in rotation upon the shaft 20. The cam 68 has two high points, one or the other of which will `strike the roller 69 at the end of each stroke of the saw. When the toggle 65a is in the position shown in full lines in Fig. 11, the action of the cam 68 upon the roller 69 will cause the bar 66b to force the lever 66 `outwardly and force the friction member 62 into contact with the brake blocks 65. This will stop the rotation of the shaft 12 and hold the friction member in the brake position until it is released. l/Vhen the toggle 65 is thrown into the position shown in broken outline in Figll, the bar 661D will act upon the lever 66 and release the clutch member 62 from the brake blocks 65, and the spring 12a will force it into the clutch position. To start the intermittent mechanism I provide a treadle 7() in position to be pressed by the foot of the operator (see Fig. 14). This treadle is connected to a lever 71 which is pivoted to the frame of the machine and connected to the toggle 65L by a short pivot plate 72. An adi justable spring 73 serves to return the treadle to normal position and to permit the spring 72a to return the toggle 65t to normal position. It will `now be evident that, when the toggle 65a is in the normal position shown in full lines in Fig. 11, when a high point of the cam 68 acts on the roller 69, the clutch member 62 will be forced to the brake position and will remain there until released by the toggle 65a through the treadle connections. When, through the treadle connections, the operator throws the toggle 652l to the other position against its spring 72, the lever 66 will act and release the clutch member 62 from the brake blocks 65, and, although the cam 68 will continue to act upon the roller 69, so long as the operator holds the treadle, the lever 66 will not be affected, and the shaft 12 will continue to rotate until the treadle is released. By these means all reciprocatory movements will be automatically stopped after a single movement of the saw, but at the same time the operator may repeat or continue the movements at will.

Bilge curve mechanism- Since stave blanks are of different widths, it follows that the bilge curve of each stave must vary directly with its width in order to make a symmetrical barrel; and, therefore, the saw must travel on a curve of greater or less radius, according to the width of the stave.

Referring especially to Figs. 7 and 17, mounted upon the longitudinal rod 59, which is pivotally supported at its ends, are placing arms 55 and 56, the upper free ends of which serve to bear against the outer edge of a stave blank when laid upon the supports and to shove the blank transversely to the proper position under the eye-guide 57. Rigidly secured to the rod 59 is a lever 75, which is pivoted to a rod 76, which, in turn, is pivoted to a lever arm 77, which is fulcrumed at 78 to a bar 79 secured rigidly to au angle plate SO on the bed of the machine. The outer-end of the lever 77 is attached by two pivot links 81 to a plate 82 secured to the carriage guide 3ft adjacent to one end. Iivoted to said lever 77 is a second lever 83 which is fulcrumed at 86 to the angle plate 80, and which, at its other end, is connected by pivot links 84 to a plate S5 secured to the carriage guide 34 adjacent to its opposite end. The carriage guide 311 is rigidly secured centrally to the angle plate 80. It will now be evident that, as the rod 59 is rotated by movement of the placing arms 55 and 56 outwardly, the lever connections just described will cause the carriage guide 34 to be curved over a shorter radius, and movement of the placing arms 55 and `56 inwardly will cause the carriage guide to be curved upon a` longer radius. In this manner the curvature of the carriage guide 34 will vary directly with the position of the guides or arms 55 and 56, which, of course, will be positioned according to the width of the staveblank.

Guide clamping Meana-In order to hold the guides 55 and 56 rigidly during the period of jointing, so that there shallbe no change in the predetermined curvature of the carriage guide n34:, I mount on the rod 59 a segment 86a (Fig. 17) and pivot to the frame of the machine a bar 87 which bears against one side of the segment 86, and which is held in such frictional Contact by a spring 88. The rod 211 which lifts the rods 15 and 16 passes through a slot in the bar 87,r and on said rod 24 is secured a lug 89, capable oi bearing against said bar 87 in opposition to said spring 88. When the bar 24 moves to lift t-he stave clamping lingers, the lug 89 will bear against the bar 87 and release the segment 86 until the stave clamping lingers are again inaction. By this means the guides 55 and 56 are held firmly against any movement during the saw operation and any change of curvature oi' the carriage guide 34 is prevented. The sec0ndary frame 52 has an opening in its front side and a cover 59a over said opening, by the removal of which the operator may get his hand inside said frame to adjust any mechanism adjacent thereto. The cuttings, saw dust and waste strips drop upon a vdelector 6WL which directs them to the "floor or to any desired point for removal.

Operation of the machine-Assuming the saw to be rotating and all oi the parts having intermittent movement at rest, the operator places a stave plank upon the rests 53. He then moves the guide arms 55 and 56 against the front edge of the blank and shoves the blank rearwardly under the eye guide 57 in proper position for jointing. This vmovement of the guides 55 and 56 through the rod 59 and connections with the i levers 77 and 83 ladjusts the carriage guide a 84 lto 'the proper curvature or bilge of the blank. The operator then presses the treadle l 710, which mediately acts upon the toggle a, and throws the clutch members 11 and A62 into action, which inediately sets the: shaft 2O in rotation. This irst causes the,`

cam 19 to release the lever 22, and this,

through the rods 23, 24, and bell-cranio levers 26 allows the rods 15 and 16 to respend to the springs 56a and bring the clamping lingers 18 down upon the 'stave blank. As this is done, the rod '24 through the lug 879 releases the bar 87 so that it clamps the segment and hold the rod 59 against rotation. The crank 51 on the shaft 20 now acts through the rod 50 upon the lever 4:9, rod 48 'and pivot plate 48a land moves the carri-age over the carriage bed, the carriage following the predetermined curvature of the carriage guide 311.v This causes the saw to joint the stave blank upon one edge; and as the saw completes this stroke, a high point on the cam 68 strikes the roller 69 and, through the toggle mechanism, forces the lever 66 outwardly, disconthe clutch member 62 into contact with the brake blocks 65, thus stopping the intermittent mechanism. At the same time the clutch is thrown out, the cam 19 has acted upon the lever 22, raising the clamping iingers and releasing the segment holding the placing guides; The operator now reverses the stave blank and repeats the operation to joint the other edge.

I claim:

l. In a stave jointing machine, in combination with stave blank holding means, a saw, a saw carriage, a bed upon which said carriage travels in horizontal plane, and means for causing said carriage to travel upon a curve on said plane and a curve varying in radius with 'the width of the stave blank comprising a carriage guide rigidly secured medially, blocks on said carriage engaging said guide, levers pivoted to the 'free ends of said guide and fulcrumed to a iiXed part of `the machine,l and placing guides for moving a stave blank to position pivo'ted mediately to said levers.

2. In a stave jointing machine, in combination with a saw constantly driven in rotation, means for imparting intermittent movement to other mechanisms cooperating therewith comprising a clutch member constantly driven, a clutch member intermittently driven, a lever for throwing said secondi-mentioned clutch member in and out of action, a brake for engaging said second clutch member and holding it out of action and against rotation Vuntil released luy-said lever, a bar acting upon said lever, a cam driven by a shaft driven by said clutch, a roller on said bar to contact with said cam for throwing said second member of said clutch out of action, a toggle for causing said bar to throw said clutch member intov action, and 'a treadle governing said toggle.

3. In a stave jointing machine, means for placing and hol-ding a stave blank in position for jointing comprising a rest, placing arms for bearing against the iront edge of the stave blank to adjust the same transversely, clamping-means for holding said placing arms rigidly during the sawing operation, means for 'clamping the blank to said rest during the jointing, .a saw carriage movable with relation to the rest, a guide for the saw carriage and means'movalole in proportion to the mover-nent 'of the placing arms for adjusting the guide of the saw carri-age.

a. In -a stave jointing machine, in combination with a saw and a saw carriage, a bed for said carriage for guiding thesanie in a horizontal plane, a guide for said carriage to direct its movement over a `curve to form the bilge curve of a stave, a shaft and a crank thereon `for causing reciproca-tory movement of said carriage, a lever and conneeting rods for connecting said crank with guide proportional to the Width of the stave said carriage, levers for bending said cnrblank.

ringe guide on curves of varying radii, plac- EDWIN F BFUGLER ing guides for placing a stave blank in posi- J tion for jointing, and connections between Witnesses:

said placing guides and said last-mentioned HUBERT W. ENGLISH,

levers for causing bending of Said carriage D. H. HARPER.

Gopiel of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

